ARAnglerRadar evidence & rules

Compare river fishing evidence · England

Same facts.
No winner score.

Choose two named waters and compare the evidence that actually exists. Survey effort, species records and freshness are shown separately because none proves access, current presence or fishing quality.

Hertfordshire and North London

Ravensbourne

Survey sites
11
Survey events
17
Recorded taxa
12
Evidence period
5 Nov 1991 – 14 Apr 2026
Sites latest within 2 years
2
Sites latest over 10 years ago
7
EA waterbody IDs
GB106037028110 · GB106039023260 · GB106039023270
Access status
Not established by survey data
Thames

River Kennet

Survey sites
56
Survey events
264
Recorded taxa
31
Evidence period
28 Sept 1999 – 14 Oct 2025
Sites latest within 2 years
16
Sites latest over 10 years ago
31
EA waterbody IDs
GB106039017420 · GB106039023120 · GB106039023140 · GB106039023172
Access status
Not established by survey data

Overlap

10 recorded taxa appear in both survey sets

The site counts are shown per water. A higher count can reflect more monitoring sites, not a larger or healthier population.

  1. DaceRavensbourne 2River Kennet 41Latest evidence 8 Apr 2008 · 9 Oct 2025
  2. ChubRavensbourne 1River Kennet 41Latest evidence 8 Apr 2008 · 9 Oct 2025
  3. RoachRavensbourne 4River Kennet 36Latest evidence 14 Apr 2026 · 8 Oct 2025
  4. GudgeonRavensbourne 1River Kennet 31Latest evidence 8 Apr 2008 · 1 Oct 2025
  5. BullheadRavensbourne 1River Kennet 11Latest evidence 8 Apr 2008 · 14 Oct 2025
  6. European eels > elversRavensbourne 6River Kennet 5Latest evidence 14 Sept 2023 · 10 Oct 2025
  7. Stone loachRavensbourne 3River Kennet 8Latest evidence 8 Apr 2008 · 8 Oct 2025
  8. 3-spined sticklebackRavensbourne 4River Kennet 4Latest evidence 26 Oct 2023 · 14 Oct 2025
  9. RuddRavensbourne 1River Kennet 3Latest evidence 14 Apr 2026 · 4 Nov 2022
  10. Golden goldfishRavensbourne 1River Kennet 1Latest evidence 20 Dec 2007 · 12 Nov 2009

Only in the Ravensbourne survey set

  1. Flounder3 sites · latest 8 Apr 2008
  2. Common goby2 sites · latest 3 Aug 2011

Only in the River Kennet survey set

  1. Brown / sea trout47 sites · latest 14 Oct 2025
  2. Pike47 sites · latest 9 Oct 2025
  3. Perch38 sites · latest 9 Oct 2025
  4. Bleak27 sites · latest 25 Sept 2025
  5. Barbel22 sites · latest 25 Sept 2025
  6. Grayling21 sites · latest 9 Oct 2025
  7. Common bream19 sites · latest 25 Sept 2025
  8. Atlantic salmon14 sites · latest 25 Oct 2010
  9. Tench13 sites · latest 13 Nov 2024
  10. Roach x common bream hybrid12 sites · latest 25 Oct 2018
  11. Minnow11 sites · latest 14 Oct 2025
  12. European eel9 sites · latest 8 Nov 2013
  13. Ruffe9 sites · latest 5 Nov 2022
  14. Rainbow trout8 sites · latest 8 Oct 2024
  15. Brook lamprey7 sites · latest 14 Oct 2025
  16. Common [wild] carp5 sites · latest 24 Oct 2018
  17. Pike varieties5 sites · latest 1 Oct 2025
  18. Mirror carp4 sites · latest 4 Nov 2008
  19. Common carp varieties3 sites · latest 22 Oct 2015
  20. Silver bream3 sites · latest 4 Nov 2022
  21. Brook lamprey > ammocoete1 site · latest 6 Oct 2023

Method and boundary

Comparison, not prediction.

  • SourceEnvironment Agency Ecology & Fish Data
  • LicenceOpen Government Licence v3.0
  • Source copy retrieved23 Jul 2026
  • CoordinatesNot published on this page
  • Not assertedAccess, current presence, abundance, catch prospects or safety
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